EP1355532A1 - Fungicidal composition based on potassium acid phosphite - Google Patents

Fungicidal composition based on potassium acid phosphite

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Publication number
EP1355532A1
EP1355532A1 EP01974421A EP01974421A EP1355532A1 EP 1355532 A1 EP1355532 A1 EP 1355532A1 EP 01974421 A EP01974421 A EP 01974421A EP 01974421 A EP01974421 A EP 01974421A EP 1355532 A1 EP1355532 A1 EP 1355532A1
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EP
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Prior art keywords
mildew
composition
preparation
composition according
phosphite
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EP01974421A
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German (de)
French (fr)
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EP1355532B1 (en
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Jean-Louis Soyez
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Individual
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Individual
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Priority claimed from FR0101283A external-priority patent/FR2819991B1/en
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Priority to CY20081100263T priority Critical patent/CY1107297T1/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/26—Phosphorus; Compounds thereof

Definitions

  • Fungicidal composition based on potassium acid phosphite for combating cryptogamic plant diseases, and method of treatment based on potassium acid phosphite for combating cryptogamic plant diseases, and method of treatment.
  • FR-A-2 252 056 discloses fungicidal compositions based on phosphorous acid or on metal salts of this acid. If mildew is mentioned in this document ,. , on the other hand, there is no question of the cryptogams of the Erysiphacee family (powdery mildew and other "whites").
  • the salts mentioned there is, in particular, potassium or monopotassium phosphite KH 2 P0 3 .
  • potassium acid phosphite is considerably more active than fosethyl-Al, both preventively and curatively.
  • the desired pH can be imparted to the composition by producing the composition in the form of a solution of potassium acid phosphite in phosphorous acid and by acting on the excess of phosphorous acid.
  • the composition according to the invention is to be used as a complement to a basic treatment (for example, a treatment with folpel) against mildew in viticulture and other crops where mildew can be a problem.
  • the composition according to the invention can therefore be used as a formulating adjuvant
  • preparation 1 pH 8; this preparation, which corresponds to dipotassium phosphite, is used in various European countries;
  • preparation 2 pH 5; this preparation, which corresponds to monopotassium phosphite, is substantially that which is the subject of FR-A-2 252 056; .
  • preparation 3 pH 2; this preparation corresponds to an acid phosphite combination of potassium / free phosphorous acid according to the invention.
  • the diameters of the mycelial areas were measured daily in order to assess the phase of linear growth. It is in this phase of linear growth that the percentages of inhibition of the radial growth of the strain of Phytophtora infestans were determined according to the following formula:
  • the effective doses 50 (DE 50 ) and 95 (DE 95 ), that is to say the doses which inhibit respectively 50 and 95% of mycelial growth, were calculated according to the linear regressions of the percentages of inhibition ("I" in the above formula) as a function of the base 10 logarithms of the concentrations of products tested.
  • I percentages of inhibition
  • Example 3 In Vivo Trial in the Vineyard The trial was conducted, under the seal of confidentiality, by the Regional Plant Protection Service of Burgundy, in Beaune, on Aligoté / S04.
  • the commercial product Mikal which is a fosethyl-Al formulation (2,000 g) / folpel (1,000 g) / inert material (1,000 g), which is equivalent to 1,500 g of P0 3 ⁇ per 4,000 g of Mikal; - as a control, folpel alone, at the approved dose.
  • Preparation 3 alone or combined with folpel ,. is applied at the rate of 1 liter per hectare, ie 250 g P0 3 " / ha and at the approved dose of folpel.
  • the Mikal reference is applied at the rate of 4 kg / ha, or 1.500 g P0 3 ⁇ / ha and at the approved dose of folpel.
  • the test was carried out from late May to early July, with treatment every 14 days. At the end of this period, the number of stained leaves and the number of spots were counted and a statistical code ranging from a (little) to e (a lot) was assigned to the results obtained, as follows:
  • Aliette has been taken as a reference compound because it is described as being "a molecule which acts preventively and curatively by inhibiting the germination of spores, or by blocking the development of the mycelium of many fungi, mainly (. ) Plasmopara, Phytoph tora, Bremi a. "Four laboratory tests were set up according to conventional screening methods:
  • Example 5 Field test as a “stop mildew” product for the vineyard
  • the phytosanitary arsenal has not, so far, recognized the existence of a “stop mildew” product in viticulture. No known product can therefore be used as a reference for carrying out an activity comparison.
  • the vineyard plot concerned by the trial was left untreated until July 26, while at that date, the surrounding plots had been under anti-mildew treatment for a month.
  • the plot tested received a folpel treatment at the rate of 1000 g of active ingredient per hectare and of preparation 3 at the rate of 3 liters (approximately 1000 ppm) per hectare.
  • the state of the vine is assessed on August 18 by evaluating the area occupied by mildew spots on the leaves of the vine and the results, expressed as% of disease attack intensity, are given in the following table:
  • Example 6 Field test as a "stop powdery mildew" product
  • the composition according to the invention may, in association with a fungicide program, be used in a lower amount of the order of 250 to 400 g (weight expressed as P0 3 ⁇ ) per hectare for conventional treatments. crops liable to be attacked by downy mildew and / or powdery mildew, and related diseases, and in an amount which may be greater than the above range but in any case less than or equal to 750 g / ha for the late mildew treatment and / or powdery mildew, in particular thanks to its potential for curative efficacy, whether in extemporaneous use or in ready-to-use combination with other fungicides.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Inorganic Chemistry (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Medicinal Preparation (AREA)

Abstract

The invention concerns a fungicidal composition based on potassium acid phosphite having a pH less than 4. With such a pH value, the composition, associated with a fungicidal programme, is several times more efficient than fosethyl-Al used in similar conditions.

Description

COMPOSITION FONGICIDE A BASE DE PHOSPHITE ACIDE DE POTASSIUM FUNGICIDAL COMPOSITION BASED ON POTASSIUM ACID PHOSPHITE
Composition fongicide à base de phosphite acide de potassium pour la lutte contre les maladies cryptogamiques des plantes, et procédé de traitement.Fungicidal composition based on potassium acid phosphite for combating cryptogamic plant diseases, and method of treatment.
La présente invention a pour objet une composition fongicide pour la lutte contre les maladies cryptogamiques des plantes et, en particulier contre le mildiou et 1 ' oïdium de la vigne .The subject of the present invention is a fungicidal composition for combating cryptogamic plant diseases and, in particular against mildew and powdery mildew of the vine.
Plus précisément, elle concerne une composition à base d'un phosphite métallique à vocation fertilisante. FR-A-2 252 056 divulgue des compositions fongicides à base d'acide phosphoreux ou de sels métalliques de cet acide. Si le mildiou est cité dans ce document,. , en revanche, il n'y est pas question des cryptogames de la famille des Erysiphacées (oïdium et autres "blancs"). Parmi les sels mentionnés, on trouve, en particulier, le phosphite acide de potassium ou monopotassique KH2P03.More specifically, it relates to a composition based on a metallic phosphite with a fertilizing vocation. FR-A-2 252 056 discloses fungicidal compositions based on phosphorous acid or on metal salts of this acid. If mildew is mentioned in this document ,. , on the other hand, there is no question of the cryptogams of the Erysiphacee family (powdery mildew and other "whites"). Among the salts mentioned, there is, in particular, potassium or monopotassium phosphite KH 2 P0 3 .
Aucune composition fongicide correspondante n'a cependant jamais été mise dans le commerce, les phosphites selon FR-A-2 252 056 ayant été immédiatement supplantés par la découverte des propriétés d'un autre phosphite, toujours commercialisé avec succès depuis plus de vingt ans, le monoêthylphosphite d'aluminium, connu sous le nom de foséthyl-Al .However, no corresponding fungicidal composition has ever been placed on the market, the phosphites according to FR-A-2 252 056 having been immediately supplanted by the discovery of the properties of another phosphite, still successfully marketed for more than twenty years, aluminum monoethylphosphite, known as fosethyl-Al.
Or, le demandeur a découvert de façon tout à fait inattendue que, dans certaines conditions, le phosphite acide de potassium est considérablement plus actif que le foséthyl-Al, tant à titre préventif qu'à titre curatif.However, the applicant has discovered quite unexpectedly that, under certain conditions, potassium acid phosphite is considerably more active than fosethyl-Al, both preventively and curatively.
Plus précisément, l'invention porte sur une composition fongicide à base de phosphite acide de potassium qui se caractérise par le fait que son pH est inférieur à 4.More specifically, the invention relates to a fungicidal composition based on potassium acid phosphite which is characterized by the fact that its pH is less than 4.
Il a' en effet été constaté- que le niveau du pH est essentiel à l'obtention de l'effet constaté.It has in fact been found that the pH level is essential for obtaining the effect observed.
Le pH voulu peut être conféré à la composition en réalisant la composition sous la forme d'une solution de phosphite acide de potassium dans de l'acide phosphoreux et en jouant sur l'excès d'acide phosphoreux. Comme le foséthyl-Al, la composition selon l'invention est à utiliser comme complément d'un traitement de base (par exemple, un traitement au folpel) contre le mildiou en viticulture et les autres cultures où le mildiou peut être un problème. La composition selon l'invention pourra donc être utilisée comme adjuvant formulantThe desired pH can be imparted to the composition by producing the composition in the form of a solution of potassium acid phosphite in phosphorous acid and by acting on the excess of phosphorous acid. Like fosethyl-Al, the composition according to the invention is to be used as a complement to a basic treatment (for example, a treatment with folpel) against mildew in viticulture and other crops where mildew can be a problem. The composition according to the invention can therefore be used as a formulating adjuvant
(c'est-à-dire coformulée en mélange prêt à l'emploi avec un ou plusieurs fongicides stables ou stabilisés au pH considéré) ou comme adjuvant pour bouillie (c'est-à-dire mélangée par l'utilisateur avec le programme fongicide de son choix) .(i.e. co-formulated as a ready-to-use mixture with one or more fungicides stable or stabilized at the relevant pH) or as a spray mixture adjuvant (i.e. mixed by the user with the fungicide program Of his choice) .
L'invention sera mieux comprise et , ses avantages apparaîtront plus clairement à la lecture des essais comparatifs rapportés ci-après. Exemple 1 : Essai in vitroThe invention will be better understood and its advantages will appear more clearly on reading the comparative tests reported below. Example 1: In vitro test
A titre préliminaire, il a été effectué un essai sur une souche se développant bien en laboratoire, Phytophtora infestans de la pomme de terre (souche R 22-94) .As a preliminary, a test was carried out on a strain developing well in the laboratory, Phytophtora infestans of potato (strain R 22-94).
On a testé comparativement : - comme composé de référence, le produit du commerce Aliette (qui est du foséthyl-Al à 80%) à raison de 500, 1.000, 2.500 et 10.000 μg d'Aliette/ml d'eau ;The following were tested comparatively: - as a reference compound, the commercial product Aliette (which is 80% fosethyl-Al) at the rate of 500, 1,000, 2,500 and 10,000 μg of Aliette / ml of water;
- diverses préparations de phosphite de potassium en solutions à 500, 250, 500, 1.000 et 2.000 μg de préparation/ml d'eau, le pH de chaque préparation étant ajusté à une valeur déterminée en jouant sur l'éventuel excès d'acide phosphoreux :- various preparations of potassium phosphite in solutions with 500, 250, 500, 1,000 and 2,000 μg of preparation / ml of water, the pH of each preparation being adjusted to a determined value by playing on the possible excess of phosphorous acid :
• préparation 1 : pH 8 ; cette préparation, qui correspond au phosphite dipotassique, est utilisée dans divers pays européens ;• preparation 1: pH 8; this preparation, which corresponds to dipotassium phosphite, is used in various European countries;
• préparation 2 : pH 5 ; cette préparation, qui correspond au phosphite monopotassique, est sensiblement celle qui fait l'objet de FR-A-2 252 056 ; . préparation 3 : pH 2 ; cette préparation correspond à une combinaison phosphite acide de potassium / acide phosphoreux libre selon 1 ' invention.• preparation 2: pH 5; this preparation, which corresponds to monopotassium phosphite, is substantially that which is the subject of FR-A-2 252 056; . preparation 3: pH 2; this preparation corresponds to an acid phosphite combination of potassium / free phosphorous acid according to the invention.
Après stérilisation, on a ajouté, à du milieu Rye B-Agar maintenu en surfusion à 50°C, respectivement 20 ml du composé de référence et 20 ml de chacune des préparations indiquées ci-dessus et on a coulé le milieu ainsi supplémenté dans des boîtes de Pétri (3 boîtes par cas) . A titre de témoin, on a également travaillé sur des boîtes de Pétri (3 boîtes) contenant le même milieu mais sans adjonction ni du composé de référence, ni deAfter sterilization, 20 ml of the reference compound and 20 ml of each of the preparations indicated above were added to Rye B-Agar medium maintained under supercooling at 50 ° C. and the medium thus supplemented was poured into Petri dishes (3 dishes per case). As a control, we also worked on Petri dishes (3 dishes) containing the same medium but without adding either the reference compound or
- .préparation à base de phosphite potassique.-. preparation based on potassium phosphite.
Après refroidissement, on a ensemencé chaque boîte deAfter cooling, each box is inoculated with
Pétri en son centre avec un implant mycélien standard de 6 mm de diamètre prélevé en périphérie d'une colonie dePetri dish in the center with a standard 6 mm diameter mycelial implant taken from the periphery of a colony of
Phytophtora infestans en phase exponentielle de croissance et on les a placées en incubation à 19 °C, à l'obscurité.Phytophtora infestans in exponential growth phase and they were incubated at 19 ° C in the dark.
Les diamètres des plages mycéliennes ont été mesurés quotidiennement afin d'apprécier la phase de croissance linéaire. C'est dans cette phase de croissance linéaire qu'ont été déterminés les pourcentages d'inhibition de la croissance radiale de la souche de Phytophtora infestans selon la formule suivante :The diameters of the mycelial areas were measured daily in order to assess the phase of linear growth. It is in this phase of linear growth that the percentages of inhibition of the radial growth of the strain of Phytophtora infestans were determined according to the following formula:
I = 100 (Ro-Ri)/Ro où Ro représente la croissance mycélienne radiale dans le cas du témoin et Ri la croissance mycélienne radiale en présence du produit testé (Aliette ou préparation à base de phosphite potassique) . Les pourcentages d'inhibition ont été déterminés après 11 jours de culture.I = 100 (Ro-Ri) / Ro where Ro represents the radial mycelial growth in the case of the control and Ri the radial mycelial growth in the presence of the tested product (Aliette or preparation based on potassium phosphite). The inhibition percentages were determined after 11 days of culture.
Les doses efficaces 50 (DE50) et 95 (DE95) , c'est-à-dire les doses qui inhibent respectivement 50 et 95% de la croissance mycélienne, ont été calculées d'après les régressions linéaires des pourcentages d'inhibition ("I" dans la formule ci-dessus) en fonction des logarithmes base 10 des concentrations en produits testés. Ces DE50 et DE95, exprimées en μg/ l , sont résumées ci-dessousThe effective doses 50 (DE 50 ) and 95 (DE 95 ), that is to say the doses which inhibit respectively 50 and 95% of mycelial growth, were calculated according to the linear regressions of the percentages of inhibition ("I" in the above formula) as a function of the base 10 logarithms of the concentrations of products tested. These ED 50 and ED 95 , expressed in μg / l, are summarized below
II ressort des résultats ci-dessus que, comparée à celle de l'Aliette, l'activité in vitro de la préparation 2It appears from the above results that, compared to that of Aliette, the in vitro activity of preparation 2
(FR-2 256 056) est du même ordre que celle de l'Aliette en(FR-2 256 056) is of the same order as that of the Aliette in
DE50 et en DE95 vis-à-vis de la souche de Phytophtora infestans . Pour la préparation 3, on observe que cette efficacité en DE50 et en DE95 est égale respectivement à 6,78 fois et 7,85 fois à celle de l'Aliette.DE 50 and DE 95 vis-à-vis the strain of Phytophtora infestans. For Preparation 3, it is observed that this efficiency in DE 50 and in DE 95 is respectively 6.78 times and 7.85 times that of Aliette.
On observe en outre que 1 ' efficacité en DE50 et en DE9S de la préparation 3 (pH très acide) est égale respectivement 3,16 fois et 23,55 fois celle du préparation 1 (pH légèrement basique) . It is further observed that the efficiency in DE 50 and in DE 9S of preparation 3 (very acidic pH) is equal respectively 3.16 times and 23.55 times that of preparation 1 (slightly basic pH).
Exemple 2 : Essai in vitroExample 2: In Vitro Test
Pour préciser les résultats observés à pH 3 à l'exemple 1, on a mis en oeuvre un test similaire sur des préparations supplémentaires KH2P03 / H3P03 et l'on a obtenu les résultats suivants :To specify the results observed at pH 3 in Example 1, a similar test was carried out on additional preparations KH 2 P0 3 / H 3 P0 3 and the following results were obtained:
Ces résultats montrent qu'à pH inférieur à 4, les préparations offrent toutes une activité supérieure à celle de l'Aliette que ce soit en DE50 ou en DE95 et que la supériorité des préparations va croissant avec l'acidité, la différence étant particulièrement marquée en DE95.These results show that at a pH below 4, the preparations all offer an activity greater than that of Aliette, whether in DE 50 or in DE 95 and that the superiority of the preparations increases with acidity, the difference being particularly marked in DE 95 .
Exemple 3 : Essai in vivo au vignoble L'essai a été mené, sous le sceau de la confidentialité, par le Service Régional de la Protection des Végétaux de Bourgogne, à Beaune, sur Aligoté/S04.Example 3: In Vivo Trial in the Vineyard The trial was conducted, under the seal of confidentiality, by the Regional Plant Protection Service of Burgundy, in Beaune, on Aligoté / S04.
On a testé comparativement pour son efficacité contre Plasmopara viticola : - à titre de compositions testées :We tested comparatively for its effectiveness against Plasmopara viticola: - as tested compositions:
. la préparation 3 de l'exemple 1, seule, dosée à 250 g (exprimé en P03 ") /litre de solution aqueuse, et . la préparation 3 de l'exemple 1, au même dosage de. Preparation 3 of Example 1, alone, dosed at 250 g (expressed as P0 3 " ) / liter of aqueous solution, and . Preparation 3 of Example 1, at the same dosage of
250 g/1, mais additionnée extemporanément avec le folpel à la dose homologuée (1.500 g/ha), c'est-à-dire la préparation 3 utilisée en adjuvant de bouillie,250 g / 1, but added extemporaneously with folpel at the approved dose (1,500 g / ha), that is to say preparation 3 used as a spray mixture adjuvant,
- à titre de référence, le produit du commerce Mikal qui est une formulation foséthyl-Al (2.000 g) / folpel (1.000 g) / matière inerte (1000 g), ce qui équivaut à 1.500 g de P03 ~ pour 4.000 g de Mikal ; - à titre de témoin, du folpel seul, à la dose homologuée .- For reference, the commercial product Mikal which is a fosethyl-Al formulation (2,000 g) / folpel (1,000 g) / inert material (1,000 g), which is equivalent to 1,500 g of P0 3 ~ per 4,000 g of Mikal; - as a control, folpel alone, at the approved dose.
,La préparation 3, seule ou combinée au folpel,. est appliquée à raison de 1 litre à l'hectare, soit 250 g P03 " /ha et à la dose homologuée du folpel . La référence Mikal est appliquée à raison de 4 kg/ha, soit 1.500 g P03 ~/ha et à la dose homologuée de folpel., Preparation 3, alone or combined with folpel ,. is applied at the rate of 1 liter per hectare, ie 250 g P0 3 " / ha and at the approved dose of folpel. The Mikal reference is applied at the rate of 4 kg / ha, or 1.500 g P0 3 ~ / ha and at the approved dose of folpel.
Le test a été effectue de fin mai à début juillet, avec un traitement tous les 14 jours. A l'issue de cette période, on a compté le nombre de feuilles tachées et le nombre de taches et l'on a attribué un code statistique allant de a (peu) à e (beaucoup) aux résultats obtenus, comme suit :The test was carried out from late May to early July, with treatment every 14 days. At the end of this period, the number of stained leaves and the number of spots were counted and a statistical code ranging from a (little) to e (a lot) was assigned to the results obtained, as follows:
Comme il ressort de ces résultats, l'addition de la préparation 3 au programme de base permet d'améliorer significativement l'efficacité dudit programme (folpel) par rapport à l'association de référence foséthyl-Al + folpel. En effet, on obtient le même nombre de feuilles tachées mais à concentration en ions phosphite six fois moindre dans le cas de l'invention ; en outre, pour cette même concentration en ions phosphite six fois moindre, le nombre de taches passe de 9,4 à 5,2 (classement respectif b et a). Exemple 4 : étude in vitro de l'effet curatif As appears from these results, the addition of preparation 3 to the basic program makes it possible to significantly improve the effectiveness of said program (folpel) compared to the reference association fosethyl-Al + folpel. In fact, the same number of stained leaves is obtained but with a concentration of phosphite ions six times lower in the case of the invention; in addition, for this same concentration of phosphite ions six times lower, the number of spots goes from 9.4 to 5.2 (respective classification b and a). Example 4 In Vitro Study of the Curative Effect
Il a été procédé à une comparaison entre l'efficacité curative de la préparation 3 et celle de l'Aliette (foséthyl-Al à 80%) .A comparison was made between the curative efficacy of preparation 3 and that of Aliette (80% fosethyl-Al).
L'Aliette a été pris comme composé de référence du fait qu'il est décrit comme étant " une molécule agissant préventivement et curât ivement en inhibant la germination des spores, ou en bloquant le développement du mycélium de nombreux champignons, principalement ( . . . ) Plasmopara, Phytoph tora , Bremi a . " Quatre essais de laboratoire ont été mis en place suivant les méthodes de criblage classiques :Aliette has been taken as a reference compound because it is described as being "a molecule which acts preventively and curatively by inhibiting the germination of spores, or by blocking the development of the mycelium of many fungi, mainly (. ) Plasmopara, Phytoph tora, Bremi a. "Four laboratory tests were set up according to conventional screening methods:
• sur Pseudoperospora cubensis du concombre (2 essais) . sur Phytophtora de la tomate (1 essai) - sur Plasmopara viticola de la vigne (1 essai) en procédant à une application du produit testé 24 heures après la contamination.• on Pseudoperospora cubensis of cucumber (2 trials). on Tomato Phytophtora (1 trial) - on Vine Plasmopara viticola (1 trial) by applying the tested product 24 hours after contamination.
Les résultats, à la dose de 1000 ppm de matière active, exprimés en % d'efficacité d'intensité par rapport à un témoin non traité, sont résumés dans le tableau ci-dessous : The results, at a dose of 1000 ppm of active ingredient, expressed in% of intensity efficiency compared to an untreated control, are summarized in the table below:
(1) c'est-à-dire [(100 % - Pourcentage d'attaque du végétal non traité) /Pourcentage d'attaque du végétal traité] (2) c'est-à-dire pourcentage de la surface des feuilles affectée par la maladie(1) i.e. [(100% - Percentage of attack of untreated plant) / Percentage of attack of treated plant] (2) i.e. percentage of leaf area affected by disease
Comme il ressort de ces résultats, l'Aliette, c'est-à-dire le foséthyl-Al, n'offre qu'un niveau médiocre de curativité, d'ailleurs bien connu dans la pratique, tandis que la préparation 3 selon 1 ' invention offre des. résultats brillants pour ce qui est de stopper la contamination .As appears from these results, Aliette, that is to say fosethyl-Al, offers only a mediocre level of curativity, which is moreover well known in practice, while preparation 3 according to 1 The invention offers. brilliant results in stopping contamination.
Exemple 5 : Essai sur le terrain comme produit "stop mildiou" pour la vigne L'arsenal phytosanitaire n'a pas, jusqu'ici, reconnu l'existence d'un produit "stop mildiou" en viticulture. Aucun produit connu ne peut donc être utilisé comme référence pour effectuer une comparaison d'activité.Example 5: Field test as a “stop mildew” product for the vineyard The phytosanitary arsenal has not, so far, recognized the existence of a “stop mildew” product in viticulture. No known product can therefore be used as a reference for carrying out an activity comparison.
L'essai a été effectué dans le Roussillon (France) au cours de l'été 2000.The test was carried out in Roussillon (France) in the summer of 2000.
La parcelle de vigne concernée par l'essai a été laissée sans traitement jusqu'au 26 Juillet, alors qu'à cette date, les parcelles environnantes étaient sous traitement anti-mildiou depuis un mois. Le 26 Juillet, la parcelle testée a reçu un traitement à base de folpel à raison de 1000 g de matière active par hectare et de la préparation 3 à raison de 3 litres (environ 1000 ppm) par hectare.The vineyard plot concerned by the trial was left untreated until July 26, while at that date, the surrounding plots had been under anti-mildew treatment for a month. On July 26, the plot tested received a folpel treatment at the rate of 1000 g of active ingredient per hectare and of preparation 3 at the rate of 3 liters (approximately 1000 ppm) per hectare.
Le même traitement a été renouvelé le 2 Août.The same treatment was renewed on August 2.
Le 9 Août, on a appliqué un traitement à base de folpel à raison de 1000 g de matière active par hectare et de la préparation 3 à raison de 1 litre (environ 333 ppm) par hectare, reprenant ainsi le programme au rythme normal de 14 jours.On August 9, a treatment based on folpel was applied at the rate of 1000 g of active ingredient per hectare and of preparation 3 at the rate of 1 liter (approximately 333 ppm) per hectare, thus resuming the program at the normal rate of 14 days.
L'état de la vigne est apprécié le 18 Août en évaluant la surface occupée par les taches de mildiou, sur- les feuilles de la vigne et les résultats, exprimés en % d'intensité d'attaque de la maladie, sont donnés dans le tableau suivant :The state of the vine is assessed on August 18 by evaluating the area occupied by mildew spots on the leaves of the vine and the results, expressed as% of disease attack intensity, are given in the following table:
Comme il ressort de ce tableau, la maladie a été pratiquement stoppée par le traitement, comme le confirme l'étude des taches de mildiou totalement blanchies sur feuilles - et ce, en deux semaines et demie - alors que le mildiou a continué à se développer sur le témoin non traité.As can be seen from this table, the disease was practically stopped by the treatment, as confirmed by the study of fully bleached mildew spots on the leaves - in two and a half weeks - while the mildew continued to develop on the untreated witness.
Exemple 6 : Essai sur le terrain comme produit "stop oïdium"Example 6: Field test as a "stop powdery mildew" product
Des essais comparatifs ont été effectués, dans le Roussillon (France) , sur de la vigne où Uncicula necator était très développé, ce, début Septembre 2001. Après application, le 3 Septembre 2001, de la Préparation 3, respectivement de 1, 2 et 3 litres/ha et de la référence officielle pour l'oïdium de la vigne, à savoir le soufre, les rësμltats ont été relevés, le 18 Septembre. Pour ce faire, on compte, par unité de surface, le nombre de cleistothèces qui sont les organes de conservation de la maladie .Comparative tests were carried out, in Roussillon (France), on vine where Uncicula necator was very developed, this, at the beginning of September 2001. After application, on September 3, 2001, of Preparation 3, respectively of 1, 2 and 3 liters / ha and the official reference for powdery mildew of the vine, namely sulfur, the results were noted on September 18. For this do, we count, per unit area, the number of cleistothecia which are the organs of conservation of the disease.
Les résultats obtenus sont rapportés dans le tableau suivant .The results obtained are reported in the following table.
Moyenne de 5 témoinsAverage of 5 witnesses
De nombreuses observations de terrain indiquent que ce phénomène est général dès la concentration de 1 litre/ha lorsque la Préparation 3 est utilisée en complémentaire de fongicides anti-oïdium ou à action secondaire sur l'oïdium.Numerous field observations indicate that this phenomenon is general from the concentration of 1 liter / ha when Preparation 3 is used in addition to anti-powdery mildew fungicides or with secondary action on powdery mildew.
Compte tenu de son activité, la composition selon l'invention pourra, en association avec un programme fongicide, être utilisée en une quantité inférieure de l'ordre de 250 à 400 g (poids exprimé en P03 ~) par hectare pour les traitements classiques des cultures susceptibles d'être attaquées par le mildiou et/ou de l'oïdium, et maladies voisines, et en une quantité pouvant être supérieure à la gamme précitée mais en tout cas inférieure ou égale à 750g/ha pour les traitements stop mildiou et/ou oïdium, en particulier grâce à son potentiel d'efficacité curative, que ce soit en emploi extemporané ou en association prête à l'emploi avec d'autres fongicides. Given its activity, the composition according to the invention may, in association with a fungicide program, be used in a lower amount of the order of 250 to 400 g (weight expressed as P0 3 ~ ) per hectare for conventional treatments. crops liable to be attacked by downy mildew and / or powdery mildew, and related diseases, and in an amount which may be greater than the above range but in any case less than or equal to 750 g / ha for the late mildew treatment and / or powdery mildew, in particular thanks to its potential for curative efficacy, whether in extemporaneous use or in ready-to-use combination with other fungicides.

Claims

REVENDICATIONS
1 - Composition fongicide pour la lutte contre les maladies cryptogamiques des plantes, à base de phosphite acide de potassium, caractérisée par le fait que son pH est inférieur à 4.1 - Fungicidal composition for the fight against cryptogamic plant diseases, based on potassium acid phosphite, characterized in that its pH is less than 4.
2 - Composition selon la revendication 1, caractérisée en ce qu'elle renferme de l'acide phosphoreux à l'état libre. 3 - Adjuvant formulant, caractérisé en ce qu'il associe la composition selon la revendication 1 ou 2 et un ou plusieurs fongicides stables ou stabilisés au . pH concerné .2 - Composition according to claim 1, characterized in that it contains phosphorous acid in the free state. 3 - Formulating adjuvant, characterized in that it combines the composition according to claim 1 or 2 and one or more fungicides stable or stabilized with. pH concerned.
4 - Adjuvant formulant selon la revendication 3, caractérisé en ce qu'il renferme du folpel.4 - adjuvant formulant according to claim 3, characterized in that it contains folpel.
5 - Adjuvant pour bouillie, caractérisé en ce qu'il renferme la composition selon la revendication 1 ou 2.5 - Admixture for porridge, characterized in that it contains the composition according to claim 1 or 2.
6 - Procédé de traitement des cultures susceptibles d'être attaquées par le mildiou et/ou l'oïdium, caractérisé en ce qu'il consiste à appliquer, en association avec un programme fongicide, la composition selon l'invention en une quantité de l'ordre de 250 à 400 g de composition (poids exprimé en P03") par hectare.6 - Process for treating crops liable to be attacked by mildew and / or powdery mildew, characterized in that it consists in applying, in combination with a fungicidal program, the composition according to the invention in an amount of 1 'order of 250 to 400 g of composition (weight expressed as P03 " ) per hectare.
7 - Procédé de traitement stop de cultures attaquées par le mildiou et/ou l'oïdium, caractérisé en ce qu'il consiste à appliquer, en association avec un programme fongicide, la composition selon l'invention en une quantité inférieure ou égale à 750 g de composition (poids exprimé en P03") par hectare. 7 - Process for the stop treatment of cultures attacked by mildew and / or powdery mildew, characterized in that it consists in applying, in combination with a fungicide program, the composition according to the invention in an amount less than or equal to 750 g of composition (weight expressed as P03 " ) per hectare.
EP01974421A 2001-01-31 2001-10-02 Fungicidal composition based on potassium acid phosphite Expired - Lifetime EP1355532B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CY20081100263T CY1107297T1 (en) 2001-01-31 2008-03-07 COMPOSITION WITH FUNCTIONAL ACTIVITY BASED ON POTASSIUM ACID PHOSPHITE

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR0101283A FR2819991B1 (en) 2001-01-31 2001-01-31 POTASSIUM ACID PHOSPHITE FUNGICIDE COMPOSITION FOR THE CONTROL OF CRYPTOGAMIC PLANT DISEASES AND METHOD OF TREATMENT
FR0101283 2001-01-31
FR0108727 2001-07-02
FR0108727A FR2819992B1 (en) 2001-01-31 2001-07-02 POTASSIUM ACIDIC PHOSPHITE FUNGICIDE COMPOSITION FOR THE CONTROL OF CRYPTOMATIC PLANT DISEASES, AND PROCESSING METHOD
PCT/FR2001/003038 WO2002060259A1 (en) 2001-01-31 2001-10-02 Fungicidal composition based on potassium acid phosphite

Publications (2)

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EP1355532A1 true EP1355532A1 (en) 2003-10-29
EP1355532B1 EP1355532B1 (en) 2008-01-02

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EP (1) EP1355532B1 (en)
AT (1) ATE382262T1 (en)
CY (1) CY1107297T1 (en)
DE (1) DE60132248T2 (en)
ES (1) ES2296807T3 (en)
FR (1) FR2819992B1 (en)
WO (1) WO2002060259A1 (en)

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US7691608B2 (en) 2006-12-06 2010-04-06 Repligen Corporation Nucleic acids encoding recombinant protein A
WO2023078822A1 (en) 2021-11-03 2023-05-11 Globachem Nv Fungicidal composition and method of treatment thereof

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AU2007275161B8 (en) 2006-07-17 2011-12-22 Ceradis B.V. A new antifungal composition
PE20091532A1 (en) 2007-12-19 2009-10-03 Dsm Ip Assets Bv TREATMENT OF BANANA AND POTATO PLANTS WITH A NEW ANTIFUNGAL COMPOSITION
FR2967553B1 (en) * 2010-11-24 2013-06-28 Xeda International NEW PROCESS FOR TREATING PLANT PRODUCTS BEFORE OR AFTER HARVESTING WITH PHOSPHONIC ACID AND ROOT OIL
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DE3702769A1 (en) * 1987-01-30 1988-08-11 Shell Agrar Gmbh & Co Kg FUNGICIDAL AGENT
EP0230209A3 (en) * 1985-12-16 1987-08-12 Ciba-Geigy Ag Microbicides
FR2706736B1 (en) * 1993-06-23 1995-08-25 Rhone Poulenc Agrochimie
US5800837A (en) * 1996-08-30 1998-09-01 Foliar Nutrients, Inc. Plant fertilizer compositions containing phosphonate and phosphate salts and derivatives thereof
AU5485300A (en) * 1999-06-14 2001-01-02 Chemgrow Phosphorus and potassium fertilizer for all forms of perennial trees, vines, and annual crops

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7691608B2 (en) 2006-12-06 2010-04-06 Repligen Corporation Nucleic acids encoding recombinant protein A
WO2023078822A1 (en) 2021-11-03 2023-05-11 Globachem Nv Fungicidal composition and method of treatment thereof

Also Published As

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ES2296807T3 (en) 2008-05-01
CY1107297T1 (en) 2012-11-21
EP1355532B1 (en) 2008-01-02
DE60132248D1 (en) 2008-02-14
ATE382262T1 (en) 2008-01-15
FR2819992B1 (en) 2007-05-11
WO2002060259A1 (en) 2002-08-08
DE60132248T2 (en) 2009-01-15
FR2819992A1 (en) 2002-08-02

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